If things are as they should be. the 3 wire cable goes to the switch, you feed the black from the 2 wire cable to the white in the 3 wire and the other 2 are the switches coming back.
They go to the blue and black wires in the fan/light. The white from the 2 wire cable goes to the whites in the fan.
Open the switch box to confirm that the white actually feeds both switches.
Those "hot" whites in the 3 wire cable should be reidentified to some other color with tape.